Chain guard



FIG. 1 is a left perspective view of the chain guard;

FIG. 2 is a left side view of the chain guard shown in FIG. 1;

FIG. 3 is a right side view of the chain guard shown in FIG. 1;

FIG. 4 is a rear view of the chain guard shown in FIG. 1;

FIG. 5 is a front view of the chain guard shown in FIG. 1;

FIG. 6 is a top view of the chain guard shown in FIG. 1; and,

FIG. 7 is a bottom view of the chain guard shown in FIG. 1. 

CLAIM I claim the ornamental design for a chain guard, as shown and described. 